EXTRUSION MACHINERY    

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 LAB MODEL                 HORIZONTAL BELL HOUSING                 HORIZONTAL TWIN CYLINDER

1. EXTRUDER-LAB MODEL EXTRUDER

The machine consists of three major assembles.

1. Hopper         2. Gear box and        3. Extrusion press.

The Gear box, hopper and extrusion press are mounted on a table. The cut wires loaded

in the hopper descending down one by one through hopper liners assisted by an

agitating mechanism driven by a cam and connecting rod. The agitating mechanism is

powered by a standard motorized reduction gear box  The descended wire pushed into

a wire feed gear box by a set of rotating hardened and ground pickup rollers through

hopper wire guide. The wire feed gear box feeds the wires by a set of hardened and

ground rotating feed rollers to the extrusion press through wire guides. The feed

pressure on the wire can be controlled by a hand wheel provided on the top of the

feed gear box. The pickup rollers and wire feed rollers were powered by an electric

motor controlled by an AC variable speed drive. The wire feed speed can be varied by

varying the supply frequency to the motor by the AC variable frequency drive.

In the extrusion press the core wire is coated with flux and the outside diameter

of the coated flux is controlled by a coating die. The concentricity between the wire

and the flux coated over the wire can be controlled by four adjusting screws provided

on the coating die holder. The flux pressure can be varied by adjusting the hydraulic

system pressure. The Lab model extruder is designed to extrude electrodes of

wire diameter ranging from 2.0 mm to 5  mm with variable feed rates.

 

 

Wire feeding speed	7 – 20 Rods / Min ( 2.5 to 7 Meters / Min)
Wire size	2.0 mm to 5 mm
Input power to wire feeding unit	Pick Up	0.5 HP
	Feed	1 HP
Pickup roller	2 Sets ( Hardened and Ground)
Pickup roller diameter	98 mm
Feed roller	1 set ( Hardened and Ground)
Feed roller diameter	104 mm
Oil cylinder bore	160 mm
Flux cylinder bore	70 mm
Flux cylinder length	250 mm
Flux cylinder volume	950 cc
Max Flux flow rate	250 cc / Min
Hydraulic system pressure	200 Kg / Sq.cm
Specific pressure on flux	1045 Kg / Sq.cm
Input power Hydraulic system	3 Hp
Oil tank volume	50 lit